Sheet-feeding machine



(Dec. 13; 1927. 1,652,152

H K KING v SHEET FEEDING UACHINB Filed Nov, 4, 1925 9 Sheets-Sheet 1INVENTOR.

ATTORNEY.

' Dec. 13, 1927. r

. H. K. KING SHEET FEEDING "ACHINE Filed Nov; 4, 1925 9 Shets-Sheet 2 TH v INVENTOR." flfizdardfliiiig ATTORNEY.

Dec. 13; 1927.

H. K. KING SHEET FEEDING IIACHINE Filed Nov. 4, 1925 9 Sheets-Sheet 4flawamznm'r BY ATTORNEY.

H. K. KING SHEET FEEDING MACHINE Dec. 13, 1927.

F iled-Ngv. 4.1 25 9 Sheets-Sheet 5 ATTORNEY.

\ v INVENTOR:

lifiwa dlf.

mum-N Dec. l3, 1927; I

1 H. K. KING SHEET FEEDING MACHINE Filed Nov. 1925 9 Sheets-Sheet 8INVENTOR. li'owardliiliiy ATTORNEY.v

Dec. 13, 1927.

' 1 H. K. KING sum FEEDING MACHINE Fu d Nov. 4, 1925 9 Sheets-Sheet 9 IINVENTOR: Ezdardfi'. i

ATTO RNEY.

Patented Dec; 13, 1927.

UNITED STAT Es PATENT OFFICE.

HOWARD K. KI G; or FPHQILAYDEVLPHIA, PENNsYLvANIA, 'AssIeNon'ro CHAMBERSj BROTHERS, COMPANY; A GORPGRATION or. PENNSYLVANIA.

's Enr rnEnrNG MAcHiNE.

Y Application filed November sheet feeding machine commonly known :as

the 'continuousfeed type.

The,impr vem'ents are especially applicable to machines forfeedingsheets to a print ing-press,.although certain of the improvements areequally applicable to feeding sheets to folders'or similar devices.

.T he machine as a whole is similar, in most res eets to that describedin in Patent No.

1,154,406ydated Sept. 21, 1915, which was shown as especially applicableto feeding sheets to a folding machine or similar device. V g

It is therefore believed to be unnecessary to describe in detail theentire 'm'achine which is fully illustrated and described'in saidpatent. Only such parts are described in the present application as arenecessary to show the relationof the improvements herein described andclaimed. i

The present invention comprises two sets of drop and feed'rollers,cooperating slowdown rollers and actuating and-driving means therefor;improvements in the as. rangement of the clamp and drag,"improve'- mentsin the arrangement of the side guide, or registering device, means foradjustment of the control'of the feeding operatiomthe arrangement ofthefront or press guides and means for assuring a square or true presen-'tation of the frontedgeof the sheet, means for automatically stoppingthe press upon certain conditions means arbitrarily actuated forstopping the press, improved means for adjusting the several parts,andimprovements in details of construction. 7

Referring to the drawings which illustrate merely by way of example,suitable means for the embodiment of my inven- Fig; 1 is a plan viewshowing the delivery and a portion of the feeder. l A

- Fig. 2is a right hand side elevation of'the feeder and delivery and aportion of the press. I W Fig. 2 is a side elevation on an enlargescale, of thetail clamp and drag.

Fig. 2 is a rear elevationof same;

' in difierent. positions. M Fig. 22 sa S8Ct-1O11O11 'E111 enlargedscale 0111111622,.0f Fig. 19.

I is a left hand sideelevation of the 4, 1925. Serial No. 66,763.

delivery with the forward partof the feeder and-thefrear of the pressshown.

. Fig. 4- is a righthand'elevation showing the drive and actuationmechanism of the slow-downs.

Fig.2 5 is a 'section' on lin s; .5 of .Fig. 1.

ig. 6 is an elevation of the slow-downdriving rollers shown in Fig. 4 onan enlarged scale. 1 r

Fig. 7,is an enlarged-detail of arm and Fig. Sis a plan View of oneofthe slow down rollers. a

Fig. 9 isa section on line 9, 90f Fig. 8. *Fig. 1Ov is a similar viewasFi'gQ 9, with one partremoved and parts in a'slightly differentposition. 1

Fig. 11 is a similar view as'Fig. with therollers-in an elevatedposition.

F ig: 12 is a side elevation of' mechanism for actuating the side guideand for opening. and; closing thelslow-dolwn rollers; this viewalsoshows position.

F 13 is alplan View ofthe left hand I portion of the parts shown in Fig.12 on an enlarged scale.

Fig. 14 is aview similar to Fig..13, with parts in, a diterent position.4

shown in Figs. 13 and .1 1.

Fig. 16. is a planview of end of side connectingrool. I f r Fig. 17 is asideeleva-tion .of parts shownin Fig. 16.

guide control and tripping mechanism.

Fig 20 is-a sectlon of the a1r diaphragm shown in Fig. 19.

Fig. 21' is aj section of the feeding guide on line 21, 21 of Fig. 1, onan enlarged scale.

Fig. 21 is similar View showing parts showing the air passage andcontrol.

Fig. 24 1s a section of a portion connected with themechanismshown inFig. 19;

Fig. 25 is a section on line 25,25'of Fig. 19.

' Fig. 26 is an elevation of some of the parts shown in Fig. 19, inclifiierent positions,

secondfeed roller in closed.

Fig. 15 is 'a "side elevation of the parts- Fig. 18 is a section .online 18, 18 of Fig.

ice

Fig. 27 is a view similar to Fig. 26, with some oi the parts indili'erent positimis.

Fig. 28 is a section on line 28. 58 of Fig. 1..

Fig. .29 an elevation oi the feed roller shoivi'i in Fig. 2%.

Fig. 30 is a fragmentary section on an enlarged scale of parts shown inFig.

Fig. 31 is a fragmentary elevation on an enlarged scale of other partsshown in Fig.

Fig. Silis an elevation on an enlarged scale of the end of connectingrod as seen on section 32, 232 of Fig. 5.

Fig. 33 a view similar to Fig. 32 parts in slightly dillerent position.a I

Fig. 3% is a section on line 34, 34E of Fig. 4:, on anenlarged scale.

Fig.8.} is a front elevation of the press feeding guide on an enlargedscale.

Fig. 36 is a section on line 36, 3G 01 Fig. 235.

Similar numerals refer to similar parts throughout theseveral views. a

It will be understood that the bank of sheets is delivered around thedrum and operated upon by the combing wheelin the manner described in:said Patent No. 1,154,- 406. The front edge of the foremost sheet movesalong the feed board to and over the steel blades at}, and passesbetween the first delivery drop rollers a7 and the feed rollers 48. SeeFigs. 1 and 28. The said drop and feed I'OllEI'S lXITlIlS case, becomepart ofthe feeder, whereas in theidevice disclosed in said Patent No.1,154,406, the feeder does wi th not have any drop and feed roller, butuses the folder drop and feed rollers becon'ring a complete feeder onlywhen attached to a folding machine. i l

The trip linger 49 or cut-out", shown in Fig. 28, operates to control a.pnelmnuic valve by rocking the supporting; shaft 51 in substantially thesame way as thatldescribed in connection with Figs. 11. 12 andl i ofsaid Patent No.1,15ah-l06, except that the method of mounting and adjustment is difl'erent. The bracket 50 is mounted on the square shaft51., by havingtwo adjacent faces, at right angles with each other,ongaging correspondinn :uljaccnt faces of the shaft and a stiti springplate 52 secured .to bl'i'ltkti tit) engaging; a diagnmally oppositecorner of the shaft as shown in said Fig. 28. This does away with theyoke and set-screw ltqlllltllwlH accordance with the former patout. Thebracket 50 can be moved along the bar or shaft 51 to any desiredpositionof adjustment and will be held firmly in said position of adjustment bythe pressure oi said spring 52. The adjustment of the trip tin {1015 19upon the bracket 50 is of great in1- portance in order to secure theproperly timed pneumatic control. In accordance with the former patentthis trip linger was adjustably secured tothe yoke by means of a slo andbolt. By such means it was ditengages the abutment 59 in the cylinderfor 50. The outerendofrod 55 is threaded and provided with a knurled nut57 which engages the outer end of the cylinder formation 56. Thecylinder formation is open at the opposite end and forms a housing forthe compression spring 58, one end of which mation 56 and the other endengages the end of the arm 54. so that the position of the outer endottrip finger 49 may be adjusted with great relineinentby simply turningthe knurled nut .57. It will also be notedthat the upper surfaccbO oftheextreme outer end of trip linger 4t!) in substantially the arc ol.the outer periphery. of feed roller 48, and at a required distance fromthe underside. of said trip linger, so that when this surface (it)corresponds with the peripheral surface of the roller 48, the fingerprojects the required distance into the groove 61 of said roller 48,. tosecure the normal actuation of the pneumatic device which it con. trols.This arrangen'ient provides a simple andeli'ective means for veryaccurate initial adjustment, and convenient means for moditying the saidadjustment at wilLI The sheet is started and carried by the firstdelivery dropand feed rollers until .it is well under-control of thesecond delivery drop and feed roller. The second delivery drop roller62; (see Fig. 3) is under the. sheet, with its feodroller (523 over thesheet. 'lhese (,lcli'veryrollers have the same surface speed as thelirst delivery feed rollers. They are closed tightly together toareceivethe sheet, and act as carriers for the sheet, deliverinn it to theslmv-down rollers (34; and (1:3, Figs. 8 to ihand are locatedapproximainly.halt-way between the first drop :and feed rollers and .lhcslow-downs.

.Thc lirstw drop-rollers drop to rlorilo the rollers at exactly theright time toutart the sheet; the sccoiul drop-rollers drop to open atexactly the right time to deliver the sheet to the slow-downs which arerunning aha. slower surface speed therefore the delivery must be just;right; if too slow in opening, thosheet would be buckled, if too quickin opening. the sheet, would be left for an intcrvail without positivecontrol. j j j The lirstand secondset of drop and feed rollers and theslow-down rollers are shown in pairs. A description ofone pair willsufllce. .1; i

The action of the slow-downs is somewhat similar to the second (l1OProller. 0

rcpt the drop or moving roller 65 on the ,meam

top. The drop roller is mounted on the end-of arm 66, pivotally mountedat'67, and

controlled by the helical spring 68 andby the flat angle spring 69.These rollers haVh three positions shown "on Sheet Figs shows themtightly closed to receive the sheet, the flat angle spring 69 givingtheheavy pressure. Fig. 9' shows the roller under the control of the lighthelical spring 68, which by means of the knurled thumb nut/'70, isadjustable and can be' nade very delicate, as the 'weight of the rolleris very lightandisalso counterbalanced. 11 shows the rollers separated;they are in this position while the sheet; is being side guided.

e sheet 7 is carried element 251, which isclamped to the, shaft 113 bythe set-screw252, having a flat end of ample dimensionfor engaging theflat portion of shaft 113 so as to insurethe exact angular position oftheelement on the shaft.

This element being, laterally adjustable on said-shaft. The arm112is-clamp'ed to the S sleevef250by. means of the cap 253 and-bolts 254and 255. 'This cap 253 is secured in fixed position to element 251 bythe bolt 256; It will thus be seen that by loosening bolt i andtightening bolt 255, the outer end of arm 112 will be adjusted downward,carryg ing the pivot point 67 with it, and conse* quently the spring 69into increased pressure of contact with the pin257 on arm11-2, whichcauses increased pressure of engage-j ment of rollers 165 againstrollers 64:, when.

the'parts are, in position shown, in 10, which position is secured byrocking the shaft 113 in the counterclockwise 1 direction,

This rocking actuationrofi shaft 113is se cured withthe sideguidingjmechanism as follows: The cross-head 155 is reciprocated by theside guide cam 161 as hereafter described, The cross-head carries thepins 258. Shaft '113 is provided with arms 259 and 260; the latter beingconnected to spring 261. 1 To the outer end of arm 259 is pivotallysecured the member 262 having a notch and an overhang ng fingerextendingbeyond the notch. This notch is adapted to engage a (so with the pin 258in certain position of recip- 1 rocation of cross-head 155. r The actionbeing to give shaft 113 the required rocking move ment to lift therollers 65 as shown in Fig. 11,-pr1or to the Op ratlon upon the sheetengaging with the spring 69 secures the final i movement of arm 66 withshaft 113; The

arrangement is such that only a small part of the movement of thecross-head is utibest be described by referring to Figs.

lized to actuate shaf 11 Th s S t i O J trolled by sprin 261 and thespring movement is limited by the engagement of arm 263 (also secured toshaft 113) against shaft 264, and the action is such thatthe pin 258 iswithdrawn from the notchin member 262 to enable the roller 65 to belifted prior to' the action upon the sheet of the side guide mechanism.Y Y 1 It will also be noted that in Fig. 9, the slow-downjrollers areshown as engaging which has already been described. This condition issecured, just'prior to theopening movement, at the beg'inning of thewithdrawal of pin 258from thenotch in memher 262, whereupon the firststage of the rocking movement of shaft 113 in the clockwise directionwill causeithe elevation of pivot 67, whicliwill lift spring 69 awayfrom the pin 257 so-that the arm 66 will now be under control solely ofthe light spring 68 which is attached at one end to spring 69 an'dattheother end to the arm 263, which is adjustable described.

The driving, of the feeder by the can 2, 3

b means of the nut 70 as above and 4:; the'smaller sprocket 190.. seeFig. 2., is on, thepress driving shaft 191, the larg ger '193is suitablygeared with the angle shaft 194. In this angle shaft are included twouniversal joints 195v and a telescopic sleeve 196. The angle shaft194 issuitably geared within the housing; 197 with the cam shaft 198 of thefeeder.

Cam shaft 198 is (see Fig. provided with very slight'pressure; thepurpose of sprocket 192 is on a short shaft 193. Shaft with the gear265, which drives gear 266,7

which rotates with gear 267. Gear 267 drives gear 268 which is on shaft72 of the feed roller 48, see Fig.- 4. Shaft '72 provided with the gear173, driving pinion 74: connectedto sprocket 7 5 carrying'chain 76 whichdrives the double sprocket 77, which is connectedby chain 78, to thesprocket 79,

see Fig. 1, which is on shaft 81 of the sec ond feed roller 63. Shaft'81 also carries sprocket which is connected by chain 82 running overidler 83 and driving sprocket i 811-. Sprocket. 84 is mounted in sleeve85, see

Fig. 3ft, which carries the pinion 86 and also thegear wheel 87. Thissleeve is mounted on the sleeve 88 which forms a part of the housing 89and is supported by 7 housing 89 carries the stud 91 on which is of theside guide mechanism; The pm 269 j mounted the gear wheel 92 meshingwith plnion 86; On thehub of gear wheel 92 is mountedthe friction wheel93. The housing or ...d

mounted the friction wheel 00. It will thus he seen that sprocket 84-drives througlzh the gears 87 and 95 the high speed triction wheel 00.and, through the gcarstlti and 92. the low speed :t'riction wheel 03(see Fig. (3). Shaft 01' carries the slowdown teed rollers 6-1;. On thisshaft 9'? is mounted the friction wheel 08. This friction wheel 08adapted to cooperate with the high speed friction wheel 0th or with thelow speed friction wheel .Khdepcnding upon the position of housing 00,to give the slohwloivn teed rollers either a high speed or a low speed.Fig. 0 shows the elements in position tor high speed drive.

The housing; is given a slight rocking movement to aire this highspender low speed by the following mechanism.

Relrrrling to Fig. ehcani 103 mounted on shattlJS operatescani roller104: on aria 2T1, pix 'oted at 27:2. and connected .at its lower end hyconnccti nr rod 273 with man 105 secured to drop roller shaft 270. ()nshaft; 270 the arm 270. see liig'. .12, at the lower end oil? whichattached the spring 275. On shaft 270 also mounted the sleeve 9177, seeFig". 1. which carries the drop roller arms 27 i. On this sleeve 27'? isalso mounted the arm 278. A spring 279 having one enden {gagging arm2-78, and the other endengaging arm 2T0, tends to separate said arms,and adjusting screw 200. having a shoulder engaging arm Q78. and its endthreaded into arm 270. counteracts the said spring tension. By thismeans the :uljustinent between arm 105 on shaft 270, and the drop rollerarm 271i on sleeve 277, is secured.

On arm 105 is provided the pin 281, Fig. 7, carrying the hlocl; 100which is seated in the slot 282 of connecting! rod end 283, securedtothe connecting rod 100. The other end of: this rod is secured to therod-end 284, provided with the slot, 285, see Figs. 32 and 33, for theend of the stud 94;. ()n coniusctine rod 100 is provided the heavycompression spring 00, one end of which engages the statii'manvahutl'nent 2%. The other end engages the end piece 28%. A lightertension spring; l0ll is connected at one end with the stud i l and atthe other end to the arm 1053. Fig. 5.

\Yhcn roller '104; is on the small diameter 01' cam i011. twinning; droprollcrlll in contact with 't'ced roller 0;}, the hlock 10(3 moves to theright in slot.- 282 which permits the spring 00 to force the connectingrod 100 to the right, in Fin. l (or to the left as shown in Fig. 32)thereby acting on stud 9+1: to rock the housing SS) to bring higg'l'ispeed friction wheel into engagelnei'it with friction wheel 98. When camwheel 104 is slightly raised from the small diameter of cam 103. arin105 is moved slightly to the left and block 100 is moved to the left toengage the end 107 of screw 108, which moves connecting rod 100 to theleft in Ilig sA: and '7. This rcsultsin (annpressing spring and withdrawing the rod away from stud 04;, as shown in Fig: heroines effectiveto rock housing St) to hring 33, whereupon the springflOl the lowi-apeedtrietion wheel 90 into cngagewent with :lrietion wheel 08.

It will thus he soon that, (just as the sheet enters the slowdowns, thesecond drop roller releases its grip, and the sheet takes a re ducedspeed, (which the high speed of the slow-downs). alter which. as thesheet; nears the press guides 1520, the slo\\'-dow.us operate at slowspeed. There are two illljllf lllllclllfi to time this change of speedat exactly the l.'l1e loose adpistahle piece 100, shown on the cam 103,is aLl'jllSlGd pram right instant.

Then, with the press and ticall; correctly.

the screw 108 is adjustsutlicient force to insure the sheet reachingand, tor an instant, heing held against the press guides.

The adjustable screw 108, which is providcd with the knurled head 108',is a very valnahle "feature hecausc it permits getting; a rchnedworkingadjustment without the loss of production. It is entirely possible tooperate the teeder without the use oft th s screw,

h v getting a very accurate zuljustnient oi the loose piece 109 on theram 103. However, it is ohwons that nrore or less tune will hecoi'isuined 1n getting, a satls'tzu-tory working condition as hoth pressand :lecder must he stopped in order toinake the adjustment. It isusually desirahle to make a slight adjustment for each, (litlerent job,and with the use ofthe screw 108. the sheet can be hroug'ht sottl orw1tlr more firmness.-

against the guides. The choice depending on the character of the stock,size of sheets. and speed at which the press is o iierated.

Also in some cases, accuracyversus produclion. \Vith the use off thisscrew. the loose piece 10$) once ad' ustcd can he left alone.

it will thus he seen that the secmid drop 'red delivery to the pressroller cant 103 controls the speed change,"

audthe side guide (211M 101 controls the pressure change and lilting otthe slowdowns.

It will he understmul that the sheet must he against hoth press guidesfor the press to continue in ope ation. A failure to reach one or bothguides willcanse a nlake or break contact in a switclutlnis causing themotor to stop. also the press cylinder will he tripped and the brakeapplied. The press guides 120 can be seen in Figs; 1-3, 19,21 and in 35and 30. Figs. 35and 36, being on a larger scale, show clearly thependuli un 122 projecting in the path of? the sheet.

ll hen the face 123 oi the pendulum l22prejects beyond the guide 129 as'showninFigs.

'21'and'36, the arm 12 lof the pendulum will close the nozzle 125 Thiswillresult in maintaining pressure-on a diaphragm head 7 126. Whenhowever, this face 123 is flush with't-he guide 120, the escapenozzle125 will be open, as shown inFig. 21, thus allowing the air toescape from one of'the small dithrough .aphragms 126 shown in Fig.22,-Sheet 7. The

4 as shown in Fig. 21. theair pressure .will force the diaphragm pistonin the'posltlon shown in Fig. 22, the piston rod131 acting as a latchunder the trip arm 132 loosely mounted on the drop roller shaft 133. VThis arm can be seen in Figs. 1, 3, 19,22, 27 and 26. In Fig. 1, thisarm shows the project ing lug 13 1 which rests on the top of the springarm 135; the spring arm 135"is secured to-the drop-roller shaft 133 in afixed position. The drop-roller is operated I through-means of a cam arm136 and cam 137 shown on the upper right hand, corner oi Sheet 1. Thiscam arm 136 is rigidly secured Fig; 22. In this position of the triparm, the

pistons 126 are free'tov act, therefore when not under air pressure"they will bewitlu drawn by the helicalsprings 138 pushing on thereverseside of the pistoir lt is obvious that both of these pistonrods .131must be withdrawn before the tripar1n"132 can 'follow the drop-rollerdown, 'andwhen'soheld up the three-way throw-out arm orelement 139, seeFig. 19, will be permitted to work; the upper or latch-end l ldpassingfreely under the latch end-of the trip arm 1.32. When the sheet isagainst both feedingguides, both tor cuts out thecontrol' at thepress-guides by means of lever 302, just long enough to present thefirst sheet to said guides.

of these pistons will be with'drawm-in this case the descending droproller 47 will per.- mit this trip arm 132 to fall in front ofthe latchportion 140 otthe throwout* arm, thus preventing it from following itscam 1 11 further than the position shown in Figs. 19 and 27. It is giventhis amountof 'idle' motion before being intercepted in order to get aquick action when required.

Note the position of the cam 1 11 and the I antifriction roller 142 onthe portion of the arm 139 projecting to the right. It is obvious thecam action has passed the necessarily slow part of the movement and isfullyu'nder way for quick action, when not I intercepted by the triparm. Fig--27 shows moto 1'.

side from three to five times.

it intercepted, and also showshow the cam will gently engage it at theend ofthe period and; depress it ready for another s'tart- Beferring toFigs. 19, 26 and 27, the helical spring 1 13 pulls this portion of thearm 139 upwardly and in contact with the cam as shown in Fig. 26, exceptwhen prevented by the trip arm 132 as shown in Fig. 27. The 1 spring 114;, to the left, inthe abovementioned figures, .is on'e of the springspulling '75 the .drop 'roller 17 down; there being two springs'inaddition'to gravityfor this purpose. The vertical plunger 145 pivoted on"the left branch of the throw-out arm 139 is shown in Fig. 19, incontact with the pivoted arm 146, but has notdepressed it far enough;

for action. However in Fig. 26 the plunger tact, depending on the methodof Wiring.

This in turn cuts the current from'the press The rod 148 which isconnected to the arm 14:6, unlatches well known spring controlledmechanism common to this type of press feeder, not shown. One sideofthis applies the press brake, the other trips the press, 'so'that thetype will not come in con.- tact with the cylinder; there being no sheetto receive the ink from the type. This mechanism may be called the tripbox. There are two toot pedals provided for resetting it.

"Theoperat-ion issimilar to setting a heavy spring con-trolled trap, andthe above described plunger 1&5 simply unlatches the double trap. Thetrip box levers are connected to the same brake and trip that are usedwhen the press is't'ed from its regular feed board by hand both brakeand trip being provided [With a foot pedal. This arrangement, beingcommon to all makes of flat bed printing presses, is not shown.

The object othaving the press stopped in case a sheet fails togetsquarely'against bot-h press guides is to, prevent sheets out ofregister getting through withoutv being detected. lVith everythingproperly adjusted, the pressinay run for hours without stopping.

Tn starting the press and feeder the operafor printing the first side ofthe sheet, and the other side guide-1s used when pr nting the reverseside; although the reverse side is'fre'quently printed on a difierentpress. In

color'lworl: the sheetmay beprinted on one The edge of the sheetselected for register must be used in all operations- The side guideused in this detail in these drawings.

the same cam being used for either side.

lifted in the same direction. .headis then given a halt turn.

Referring to Figs. 1,16, 14. and 15, as shown in Fig. 1, both sideguides are mounted on the same shaft. The patent last re ferred to, will.show this feature in detail. The shaft gives motion to one guide only,the shaft sliding freely through the other guide.

w The long pinion 151 shown in Fig. 15, engages with the shaft 152, seealsol 1;; and 1-il;. :Teeth 15?, are cut in the. side of the round barorsha't't 152 for this purpose.

Referring to Fig. 1:3. it will .be noted that thepinion '161 extends tora (anisiderable distance above the round shat t. ukraek 15 1, workingatrightangles to the round shaft 152, gives :motion throiiigh the pinionto this shaft, the rack being secured to the side of a small erosshead155, the connecting rod 156 from this ert'iss-head 155 extending hack torod end shown in detail in Figs. 16 and 17, and shown in assemblyconnected to a rock 11111157 in Fig. 12. Connected to the upper end ofthis rock arm 157. is a shorter connecting rod 158, which in turn isconnected to the cam arm 159, having the cam roller 1 cooperatingwiththe cam 161.

'The spring-rod .162 and spring 163 serve, in

the usual way, to keep the roller in contact with the eaiu.

Fig. 13 shows the position of the rack 1541: when the right hand sideguide is in use, and Fig. It shows its position when the left hand sideguide is in use.

To change from one side to the other, the guideblock 164 is lifted fromits pin 165. also the cross-head 155 with the rack 15-1 The eross- Figs.u; and 1'7 show the construction that permits this. The rod 156 isscrewed into the rod end 166, audfitted to turn fairly free, the smallpin 167 cooperating with the shoulder 16S l miting to halt aturn. A linethread is u. d for connecting rod 156 with end pi eee 166 and theditterenee in the length of therod, one to half a turn, does notinterfere with the two actuations performed by this rod. 1 i p The.patent last; above referred to shows how the upper or moving guideadjusts itself to position on the shaft.

After side guiding, the sheet is taken by the grippers in the usualmanner; the first turn ot the cylinder, printing the sheet as the bedtravels with the cylinder, the sec ond turn delivering the sheet as thebed re turns, the cylinder then being slightly eleand not a. feeder()PeltltlOl].

rated to permit the type clearing it. As the sheet delivered, it must bestripped from the eylii'ideiu This is all done in the usual way, and isa part of the press operation,

this point, it sometimes happens that a sheet will fail to deliverproperly, and will cru1npic up. This is usually 'alled ach0l e up, thesheet remaining jannned between the up per and lower guides. When thepress is fed by hand, this will he noticed by the operator, who willstop the press and trip the cylinder, and take the thect out. .W'ith apress feeder, it is necessary that the press he stopped automatically incase of a choke at this poiut,as more sheets com-- ing would increasethe jam.

deterring to Figs. 1. 2, 3 and .llhytwo or more light tingerslTl. areprovided; the

number depending on thesize of the press. This much is common to otherpressi eeders As shown best in Fig. 3, they are immediately over thesheet and are parallel with the supporting bars 172 and tapes173; andare made long enough to fully cover the placecwhere a choke. is mostlylikely to occur. These fingers 171 are light and are secured toa shaftjournalled at each end. They are n'evented. from dropping beyond theposition shown, by an armjlJTh secured to the leithand end of this shatt174. This.

arm 175 upon and closes an air nozzle 1'76. lVhen this nozzle iskcptclosed the air pressure keeps the diaphragm piston 177 in an elevatedposition, against the spring 177. see Figs. 12.) and 20, 23 and Themove-- ment of diaphragm piston 177 is commune cated through piston rod178 and lever 179 to lever orpivoted arm .146. It follows that thedescent ()f lilllS diaphragm piston and rod operating oirlever 146.causes the stopping and;tripping of the press cylinder, througg hthesanie meansas does the action of plui'iger above referred to.- Theair supply is ted to the diaphragm 177 through a restricted passage 180,shown in l igs. 23 and .25. This is the. same .)rineiple as the scribedtor the press guides; however thees" cape Imssage is emisiderably largerrelative to the restricted passage. The reason for the escape nozzlebeing larger relatively, is to get a very quick action on the escape; a.quite as slow moven'ient is permissible in liliing the diaphragm again.In the case ol the small pistons, shown in Fig. it is desired. tohaveaboutthe same speed in both.

However, at

ill

one shown in Fi .j23; this is normally closed by a-flat bar or plate 183pivoted at 18% .near its center. This bar is controlled by the spring185. The lower end of this bar 183 series as a handle." The body portion186 forms a support for the different elements,

and is connected by pipe, 187 to the diaphragm 177 shown in Figs; 19 and20, this pipe being a branch of theplpe connecting the other nozzleshown in Fig. 23. It'is obv ous if the nozzle shown 111 Fig. 24 s openedt \xllproduce the same-results as does opening the nozzle shown in Fig.23..

The part shown in Fig. 24 is located at a convenient place at the frontof the press, where the operator or pressman can reach it whenexaminingsheets as they are delivered in the pile. 'A slight pressure of, thefinger .on plateor; bar 183, opens nozzle 182 and 'causesa quick stop ofthe press and feeder.-

The air hose 199, shown in this figure is the supply for the feeder, andnot the trips; however the trips on the other side of the feeder arepiped from the same supply.

lVhen the feeder is notin use, the delivery apron, pivoted at 200, canbe elevated by the drums 201 andcable 202 shown in Fig. 2. After thisapron is elevated, the entirefeeder may be, woundback a distance of fromlli to 22. Fig. 2 nicely shows the bank 203 of feathered'paper from theupper feed board 2041 and comingaround the drunr205an d on the lowerboard 206 in the usual manner.

The tail clam-p and drag.

Thetail clamp, in the present machine,is "similar in constructlon,adjustment and control, to that'shown in Figs. 1, .9 and of my PatentNo. 1, 11.2,872, of Apr. 18, 1922.

The drag however, in accordance with the presentinvention, isincorporated with the tail clamp structure, asshown in Figs. 2,-

2 and 2 The clamp plate 290 is shown as pivotally supportedat 291, andhas an upwardly curved end 292, projecting beyond the pivot 291. Thedrag comprises the member or bifurcated formation 293, having theupwardly extending ends or ears 29a to which is secured thecross-pin-295 which rests upon i i the curved end 292 of the clamp plate290 whichextends between said ends 29 1. The underside'of the; middlepart 296 of formation 293 issoli-d and curved and adapted to rest uponthe bank of sheets in front of the sheet engaging end of clamp plate290. I The forward end of f0rmation293 is raised and provided with theflange 297 and post 2.98

for holding the weight 299, one or more of which may be used asrequired. On the side of the drag formation 293' is mounted the nozzle300. The function .of which is similar to that shown in Figs. 18 and 19of my said Patent No. 1,4 -.12,872. It will thus be seen that the dragandnozzle are incorporated in the tail clamp structure and par take ofthe same adjustable movements as that of the tail clamp and has theadditional advantage of bringing its dragging influence in the same pathof travel on the sheet as that of the tail clamp.

I Figs. and 36 show the press feeding guide as usedwith this feeder,drawn I full size. 7 In addition to the trip pendulum 122 incorporatedin it, there is an improvement in the guides over the sheet. This isdesirable in connection with a press feeder, as the two very small'rods239 over the sheet can be adjusted to bring them very close to the plate237 below the sheet and made parallel with it. -This place or spring237,

shown in elevation in Fig; 36, is just above the periphery of the presscylinder 238. It also isshown in section. in Fig. 35. It is a regularpart of the press. This plate is sprung in position, up against theheavy plate 23 6 forming the lower part of the regular press feed board.When the press guides 120 come down on these spring plates 237 theydepress them slightly thus forming a close contact. The small round rods239 having substantially horizontal and vertical extensions with a coilbetween said extensions are also sprung in place, the front end is underthe press guide 120 and firm against it, there being a notch cut in theguide. The, depth of this notch is slightly more than the flattened endof the rod 239; this fixes the space for the sheet at this end. Theother end can be elevated or depressed through meansof the small nut 240at the top of therod and bearing against the yoke or supporting frame241 through which the rods 239 project. When properly adjusted theserods 239 insure the sheetbeing kept the other, and actuating means forsecuring their operationin required relationship for acting upon eachsuccessive sheet.

2. In a sheet feeding machine, the combination of drop-and'feed deliveryrollers,

and cooperating slow-down rollers and automatically controlled means fordriving the slow-down feed rollers at different speeds as requiredv 3.In a sheet feeding machine, the combine tion of drop and feed rollers,and cooperating slow-down rollers, side registering mechanism and means,operating relatively to the said side registeringinerhanism forcausing aseparation of the slowalown rollers.

ll. In a sheet il'ecding machine, the combination of drop and fleedrollers, and coop erating slow-dmvn rollers, side registering mechanismand means, operating relatively to the said side registering mechanism,for causing a variation in the pressure between the slow-down rollers.

5. In a sheet; feeding machine, the combination of drop and feedrollers, and cooperating slmwdown rollers, side registering mechanisn'iand means,operating relatively to the said side registering mechanism,for causing a variation in the pressure between the slow-downrollertuand means for adjusting the time ol actuation of the slowdownrollers with respect to the operation ot the side registering mechanism.

(3. in a sheet feeding machine, the combination of drop and feed deivory rollers and cooperating drop and feed slow-down rollers, atwo-speed drive for the slow-down teed roller, means for controlling thedrive and at the same time actuating the delivery drop roller.

7'. In a sheet tealing machine, the combination of two sets oi? drop andfeed rollers and cooperating pair of slow-down rollers operatingrelatively, means tor actuating the drop roller of the second set, andmeans operating relatively thereto for changing the speed oil the$l(lvV-tl O\Vl1 rollers, and means 'lor adjusting the time of saidchangespeed control.

8. In a sheet feeding machine, the comhination of two sets of drop andfeed rollers,

cooperating slow-down rollers, actuating means tlltl'ejlOl' operating toclose the first set of drop and feed rollers, at exactly the right timeto start the sheet, and to open the second set of drop and teed rollersat exactly the right time to deliver the sheet to the slow-downs.

E In a sheet :leeding machine, the combination of two sets o'l drop andfeed rollers, cooperating slow-down rollers, act/oat meanstherelmoperating to close the hrst set oi drop and teed rollers atexactly the right time to start the sheet, and to open the second set oidrop and feed rollers at exactly the right. time to deliver the sheet tothe slo'\vlo\.ns, and means tor causing a heavy pressure between theeotnierating slow-down rollers to receive the sheet, and

then to cause a lighter engagement between the slow-downs to bring thesheet into position against the guides.

it). In a sheet feeding machine, the combination of two sets of drop andfeed rollers, cooperating slowalown rollers, 'actn ating means thereforoperating to close the lirst set of drop and feed rollers, at exactlythe right time to start the sheet,

and to open the second set ol' drop and feed rollers at exactly theright time todelivcr the sheet to the slow-downs, means for causing aheavy pressure between the cooperating :dow-down rollers to receive thesheet, and then to cause a lighter engagement between the slow-downs tobring the sheet into poi tion against the guides, and means for:nljusting the pressure of said lighter entil) rally the right time todeliver the sheet to the slow-dmvns, means for causing a heavy pressurelwtween the cooperating slmv-down rollers to receive the sheet, and thento cause a lighter engagement between the slow,- downs to bring thesheet into position against the guides, and then to cause a separationof the slow-downs.

1:2. in valve controlling mechanism for sheet 'l'reding machines, thecombination of a reel"; shaft, a hraeket slidably movable on the shaltmovided with a spring foeenring the shaft to maintain the bracket iniesitiion at adjustment upon the shaft, a tri p pivotally secured to thebracket, and a threaded element for adjusting the pivotal position ofthe trip with respect to the bracket.

1.3. In valve controlling mechanism for ill) sheet t er-ding machines,the combination of a rock shall, a bracket slidably movable on the shaltprovided with a spring for engagin the shaft to maintain the bracket inits position of adjustment upon the shaft, a trip pivotally secured tothe bracket, a spring acting upon the trip and a threaded element actingin opposition to the spring for securing the required adjustment of thetrip with respect to the ln aeket.

Il-l-. lo a valve cont-rolling mechanism for sheet Feeding machines, thecombination of a rock shall, a trip adjustably secured thercto, a teedroller provided with a peripheral groove, the trip provided with an endadapted to project into the groove, said en(l,l1av ing an upper marginada 'ited normally to register with the top margin of the groove, asmeans for indicating the proper adjust ment of the trip.

15. In a sheet feeding machine, the combination of cooperating slowdownrollers, means for driving the same at different speeds, comprising afriction elei'nent on the roller shaft, and two friction drive wheelsdriven at dill'erent speed and means for causing alternate engagement ofone or the other of said friction drive wheels with said frictionelement as required.

um i

'16. In a sheet'feeding machine, the combination of drop and feedrollersand cooperat ing slow-down rollers, and actuating and controlling meanstherefor, including means for changing the speed 'of'the slow-downs, and

means for adjusting thetime of said change.

atingsloW-down rollers, and'actuati'ng and controllingmeans therefor,including means for changing the speed of the slow-downs, and means foradjusting the time of said change, comprising a rotating cam, acooperating connecting rod andmeans for adjusting the effective lengthofthe connecting rod.

19, In a sheet feeding machine, the combination of drop and feed rollersandcooperating slow-down rollers, and actuating and controlling meanstherefor, including means for changing the speed of the slow-downs, andmeans for adjusting the time of said change,compr1s1ng a rotating cam, acooper-' atingconnecting rod and a slide box and a coacting threadedmember, and means for adjusting the efi'ective length of the connectingrod. j Y

20. In a sheet'feeding machine, the combination of drop and feedrollersand cooper ating slow-down rollers, and actuating and controllingmeans therefor, including means for changing the speed of theslow-downs, and means for adjusting thetime of said change, comprising aconnecting rod, means operating synchronously With other parts of themachine for actuating the connecting rod, and a hand operated elementcapableof varying the efiective length of the connecting rod While themachine is operating;

21. I In a sheet feeding machine, side guiding mechanism comprisingalongitudinally reciprocating shaft,-'having a'rack associatedtherewith, a reciprocating. actuating rack moving at right anglestherewith, a pinion common to both racks, a cam actuated crossheadassociated with the actuating rack, connecting means between the cam andcross head including a connecting rod and rod-end V and cooperating pinand shoulder for limiting the relative movement between rod and rod-endto "a half turn and means whereby the cross-head may be turned from oneside to the other to give right hand or left hand actuation as required.

22. In a valve controlling mechanism, the combination ofa rock-shaft ofsubstantially square cross section, a trip supporting bracket mounted toslide on the shaft having two adjacent faces at substantially rightangles With each other for engaging corresponding faces ofthe shaft, anda spring plate'secured to the bracket having its free end engaging acorner of the shaft diametrien a in faces.

HOWARD K, KING.

